METHOD FOR DETERMINING IF THE LOCATION OF A WIRELESS COMMUNICATION DEVICE IS WITHIN A SPECIFIED AREA - Patent 1155514

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EP 1 155 514 A1

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(43)	Date of publication:
	21.11.2001 Bulletin 2001/47

(21)	Application number: 00913610.2

(22)	Date of filing: 25.02.2000

(51)	International Patent Classification (IPC)⁷: H04B 7/185, G09B 27/08

(86)	International application number:
	PCT/US0004/788

(87)	International publication number:
	WO 0051/267 (31.08.2000 Gazette 2000/35)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

26.02.1999 US 258228

(71)	Applicant: Signalsoft Corp.
	Boulder, CO 80302 (US)

(72)	Inventors:
	FITCH, James, A. Edmonds, WA 98020 (US) WAGER, Garrick, T. Arvada, CO 80003 (US)

(74)	Representative: Potter, Julian Mark et al
	D. Young & Co.,21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	METHOD FOR DETERMINING IF THE LOCATION OF A WIRELESS COMMUNICATION DEVICE IS WITHIN A SPECIFIED AREA